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Reading disability with motor problems may be an inherited subtype.

S M Regehr1, B J Kaplan

  • 1Department of Pediatrics, University of Calgary, Alberta, Canada.

Pediatrics
|August 1, 1988
PubMed
Summary

Reading disability with motor problems appears to be a distinct inherited condition. This contrasts with reading disability alone, which is also inherited but shows different familial patterns.

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Area of Science:

  • Neuroscience
  • Genetics
  • Developmental Psychology

Background:

  • Reading disability (dyslexia) has a known hereditary component.
  • Specific subtypes of reading disability may have unique genetic underpinnings.

Purpose of the Study:

  • To investigate the familial patterns of inherited reading disability.
  • To determine if reading disability co-occurring with motor impairments (coordination and balance) is a distinct inherited subtype.

Main Methods:

  • Examined three groups of children: those with reading and motor problems, those with only reading problems, and controls.
  • Assessed family members (siblings and parents) for reading and motor issues.
  • Matched control children by age, sex, and socioeconomic status.

Main Results:

  • Relatives of children with both reading and motor problems showed a high prevalence of both conditions.
  • Relatives of children with only reading problems showed a high prevalence of reading problems only.
  • No significant differences were found in pregnancy/birth complications or attention deficit disorder prevalence among the groups.

Conclusions:

  • Reading disability with motor problems represents a potentially distinct inherited condition.
  • This subtype appears genetically separate from reading disability without motor impairments, although both are heritable.

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